ASHRAE/ANSI standards

All fume hoods should be tested, before they leave the manufacturer, by using ASHRAE/ANSI standard 110, Methods of Testing Performance of Laboratory Fume Hoods. The hood should pass the low- and high-volume smoke challenges with no leakage or flow reversals and have a control level of 0.05 parts per million (ppm) or less on the tracer gas test. ASHRAE/ ANSI 110 testing of fume hoods after installation in their final location by trained personnel is highly recommended. The control level of tracer gas for an "as installed" or "as used" test via the ASHRAE/ANSI 110 method should not exceed 0.1 ppm. Periodic per... 

ANSI/ASHRAE/IESNA Standard 90.1-2007 - Energy Standard for Building Except Low-Rise Residential Buildings, American Society of Heating, Refrigeration, Air-Conditioning Engineers... 

ANSI/ASHRAE Standard 34-1992, Number Designation and Safety Classification of Refrigerants ... 

ANSI/ASHRAE Standard 15-1994, Safety Code for Mechanical Refrigeration, should be studied, examined, and complied with by the design engineer. 

Figure 11-23. Refrigerant safety group classification, per ANSI/ASHRAE Standard 34-1992, also see Table 11-3B. Used by permission ANSI/ASHRAE Standard 34-1992 including Addenda 34a-o and 34q-x, p. 5, 1992, 1996. American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc. All rights reserved.

Refer to Tables 11-4 and 11-5 and the ANSI/ASHRAE Standards 15-1994 and ANSI/ASHRAE 34-1992, latest editions. Also refer to the discussion under Process Perfor-mants—Refrigerants, earlier in this chapter. 

ASHRAE (2004) ASHRAE Standard Ventilation and Acceptable Indoor Air Quality in Low Rise Residential Buildings, ANSI/ASHRAE Standard 62.2-2004, ASHRAE, Atlanta, GA 30329, USA. 

ASHRAE. 2004a. ANSI/ASHRAE Standard 62.1-2004 Ventilation for Acceptable Indoor Air Quality. Atlanta, Ga. 

ASHRAE (2007). ANSI/ASHRAE Standard 34-2007 Designation and Safety Classification of Refrigerants, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Atlanta, GA. 

Walls with less than 250 Btu/h hn ft (240 W/Un m) loss may generally be heated by ceiling diffusers that provide airflow down the window—unless the occupants would be especially sensitive to cold, such as in hospitals, nursing homes, day-care centers, and swimming pools. Walls with 250 to 450 Btu/h lin ft (240 to 433 W/Un m) of loss can be heated by warm air flowing down from air slots in the ceiling the air supply should be approximately 85 to 110°F (29 to 43°C). Walls with more than 450 Btu/h hn ft (433 W/hn m) of loss should be heated by underwindow air supply or radiation. See Ref 4 for additional discussion. The radiant effect of cold surfaces may determined from the procedures in ANSI/ASHRAE Standard 55-1992. 

Ansi/Ashrae 55, 2013. Thermal environmental conditions for human occupancy. American Society of Heating, Refrigerating and Air—Conditioning Engineers. Ansi/Ashrae Standard 55 1-7. 

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